#! /bin/bash

PROJECT=musl

# Available sub-projects.
AVAILABLE_PROJECTS=( musl )

# Enabled sub-projects.
PROJECTS=( musl )

# Additional options (see functions sources below).
# Options followed by a ':' require an argument, by '::' allow an optional argument.
SHORT_OPTIONS=
# Long options are not available with BSD getopt.
LONG_OPTIONS=

# Help for additional options
usage() {
  # option h "help" "display this help and exit"
  return
}

# Find the directory containing this script.
source="${BASH_SOURCE[0]}"
while [ -h "${source}" ] ; do
  SCRIPTS="$(cd -P "$(dirname "${source}")" && pwd)"
  source="$(readlink "${source}")"
  [[ ${source} != /* ]] && source="$DIR/${source}"
done
SCRIPTS="$(cd -P "$(dirname "${source}")" && pwd)"

# Get support functions and definitions.
source ${SCRIPTS}/support

# Projects. <directory in tree> <url> <name> <method>
musl="${SRCTOP} git://git.musl-libc.org/musl musl git"

# Check for needed libraries.
check_libraries() {
  check_library libcompiler-rt.a "Run ${SCRIPTS}/build-compiler-rt."
  if [ $? -eq 1 ] ; then
    echo "Just installing musl headers."
    INSTALL_TARGET=install-headers
  else
    INSTALL_TARGET=install
  fi
}

local=${LOCAL}/musl/${TARGETTUPLE}

configure() {
  # Configure checked out projects.

  run check_checkout
  run check_libraries
  run mkdir -p ${BUILDDIR}
  run cd ${BUILDDIR}
	run CC="${CC}" CFLAGS="${CFLAGS}" \
     CROSS_COMPILE=$(dirname ${RANLIB})/$(basename ${RANLIB} ranlib) \
     LDFLAGS=-L${LOCALLIB} LIBCC=-lcompiler-rt \
     ${PROJECTDIR}/configure \
     --target=${TARGETTUPLE} --enable-warnings --enable-debug --enable-depends \
	   --prefix=${local} --syslibdir=${local}/lib
}

tests() {
  # Run regression tests.
  run cd ${BUILDDIR}
  run ${MAKE} -j ${MAXJOBS} -C ${BUILDDIR} check
}

install() {
  run check_checkout
  run check_configure
  check_libraries
  run ${MAKE} -j ${MAXJOBS} -C ${BUILDDIR} ${INSTALL_TARGET} || exit 1
  if [ "${INSTALL_TARGET}" = "install" ] ; then
    run mkdir -p ${LOCALLIB}
    run cp -pr ${local}/lib/* ${LOCALLIB}
    run echo ${LOCALLIB} | run tee ${LOCALLIB}/ld-musl.path
  fi
  run mkdir -p ${LOCALLIBECC}/include
  run cp -pr ${local}/include/* ${LOCALLIBECC}/include
  run mkdir -p ${LOCALLIBECC}/include/$(getincarch ${TARGETTUPLE})/bits
  run cp -pr ${LOCALLIBECC}/include/bits/* ${LOCALLIBECC}/include/$(getincarch ${TARGETTUPLE})/bits
}

if [ "${CHECKOUT}" == "y" ] ; then
  checkout || exit 1
fi

if [ "${CONFIGURE}" == "y" ] ; then
  configure || exit 1
fi

if [ "${UPDATE}" == "y" ] ; then
  update || exit 1
fi

if [ "${PATCH}" == "y" ] ; then
  patch || exit 1
fi

if [ "${CREATE_PATCH}" == "y" ] ; then
  create_patch || exit 1
fi

if [ "${BUILD}" == "y" ] ; then
  build || exit 1
fi

if [ "${TESTS}" == "y" ] ; then
  tests || exit 1
fi
if [ "${INSTALL}" == "y" ] ; then
  install || exit 1
fi